<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
    private $_id;
	/**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
	public function authenticate()
	{
            $user = User::model()->find('LOWER(username)=?', array(strtolower($this->username)));
		if($user === null)
			$this->errorCode=self::ERROR_USERNAME_INVALID;
		elseif(!$user->validatePassword($this->password))
			$this->errorCode=self::ERROR_PASSWORD_INVALID;
		else
                {
                    $this->_id = $user->id;
                    $this->username=$user->username;
                    $this->setState('lastLogin', date("m/d/y g:i A", strtotime($user->last_login_time)));
                    $user->saveAttributes(array(
                        'last_login_time'=>date("Y-m-d H:i:s", time()),
                    ));
                    $this->errorCode=self::ERROR_NONE;
                }
		return $this->errorCode == self::ERROR_NONE;
	}
        
        public function getId()
        {
            return $this->_id;
        }
}